会議発表論文 Recovery of Radiation Degradation on Inverted Metamorphic Triple-Junction Solar Cells by Light Soaking

Shibata, Yuichi  ,  Imaizumi, Mitsuru  ,  Sato, Shinichiro  ,  Oshima, Takeshi  ,  Ooka, Sachiyo  ,  Takamoto, Tatsuya  ,  柴田, 優一  ,  今泉, 充  ,  佐藤, 真一郎  ,  大島, 武  ,  大岡, 幸代  ,  高本, 達也

pp.65 - 68 , 2015-11 , Japan Atomic Energy Agency (JAEA) : Japan Aerospace Exploration Agency (JAXA) : Gunma University , 日本原子力研究開発機構(JAEA) : 宇宙航空研究開発機構(JAXA) : 群馬大学
内容記述
Radiation response is one of the important properties for space solar cells. It should be well understood so as to accurately predict their degradation in orbit and also to improve their radiation tolerance. Recently, a phenomenon, recovery from the radiation degradation by light soaking, on inverted metamorphic (IMM) triple-junction (3J) solar cells was found out. In this work, the light soaking annealing effects on electron irradiated IMM 3J solar cells are reported. IMM 3J solar cells irradiated with 1 MeV electrons with the fluence of 3×10(exp 15) e(-) /cm2 showed the recovery of open-circuit voltage, Voc, up to 43 mV after light (AM0, 1 sun) soaking of 3 hours. The increment of the electroluminescence intensity for InGaP in the IMM 3J cells due to the light soaking suggests that the Voc recovery occurs in InGaP top-cell rather than GaAs middle-cell or InGaAs bottom-cell.
Meeting Information: 11th International Workshop on Radiation Effects on Semiconductor Devices for Space Applications (11th RASEDA) (November 11-13, 2015. City Performing Arts Center), Kiryu, Gunma, Japan

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